Sunspot drawing of 1977-2-1

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https://doi.org/10.7891/e-manuscripta-98689



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1977-02-01
09:00
Hs 1304.5:6207
https://doi.org/10.7891/e-manuscripta-98689
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
13 17 B 25.5 257.2
1 17